OpenAI GPT-OSS Model Features
Open-Weight Architecture
First open-weight GPT models from OpenAI since GPT-2. Full model weights available under Apache 2.0 license for complete transparency and customization.
Mixture-of-Experts (MoE)
Advanced MoE architecture with 4-bit quantization. The 120B model runs on single 80GB GPU, while 20B model works on consumer hardware with 16GB+ memory.
128K Context Window
Extended context window up to 128,000 tokens - 10x larger than most open models. Process entire documents and maintain long conversations without losing context.
Why Choose GPT-OSS?
OpenAI's GPT-OSS models offer superior performance compared to other open-source alternatives.
| Model | Parameters | Context Length | License | Chain-of-Thought |
|---|---|---|---|---|
| GPT-OSS-120B | 117B (MoE) | 128K tokens | Apache 2.0 | ✓ Native Support |
| GPT-OSS-20B | 21B (MoE) | 128K tokens | Apache 2.0 | ✓ Native Support |
| LLaMA 2 70B | 70B | 4K tokens | Custom License | Limited |
| Mistral 7B | 7B | 8K tokens | Apache 2.0 | Limited |
| Falcon 180B | 180B | 2K tokens | Apache 2.0 | No |
Superior Reasoning
Native chain-of-thought reasoning with visible thought processes for debugging and learning.
Tool Usage
Built-in ability to use external tools like web search, Python interpreter, and custom APIs.
Long Context
128K token context window allows processing of entire documents and long conversations.
Why Choose AI Server & AI Client?
Our free Windows applications make deploying GPT-OSS models incredibly simple. No technical expertise required – just download, install, and start using OpenAI's most powerful open models.
100% Private
All processing happens on your device. Your data never leaves your computer.
One-Click Setup
Install from Windows Store and start using GPT-OSS models in minutes.
Free Forever
Both applications are completely free with no hidden costs or subscriptions.
Full Features
Access all GPT-OSS capabilities including reasoning, tool usage, and long context.
AI Server & AI Client Software
Free Windows applications to deploy GPT-OSS models locally. Download from Microsoft Store and start running OpenAI models on your PC today.
AI Server
Backend server application that manages GPT-OSS model deployment on your Windows PC. Handles model loading, GPU optimization, and provides local API endpoints for AI inference.
- ✓ One-click model deployment
- ✓ Multi-GPU performance optimization
- ✓ Real-time resource monitoring
- ✓ Support for AMD and NVIDIA GPUs
- ✓ 100% local processing - no cloud needed
AI Client
Modern GUI frontend that connects to AI Server. Provides intuitive chat interface, reasoning modes, tool usage, and other AI utilities for interacting with GPT-OSS models.
- ✓ ChatGPT-style conversation interface
- ✓ Chain-of-thought reasoning mode
- ✓ Tool usage and web search capabilities
- ✓ Multiple conversation modes
- ✓ Unified AI assistant experience
Version 2.0 Coming Soon
Enhanced features, improved performance, and official GPT-OSS model presets. Stay tuned for the next major update to AI Server and AI Client.
Run GPT Models on Your Hardware
OpenAI GPT-OSS models are designed for local deployment. The 20B model runs on high-end consumer GPUs and Apple Silicon Macs with 16GB+ memory, while the 120B model needs ~80GB VRAM.
GPT-OSS-20B Requirements:
- • 16GB+ GPU memory
- • Apple Silicon Macs supported
- • Consumer GPU friendly
- • CPU inference possible
GPT-OSS-120B Requirements:
- • 80GB GPU memory (single GPU)
- • Multi-GPU setups supported
- • Professional workstation
- • Near GPT-4 performance
Ready to deploy GPT-OSS locally?
Download our free AI Server and AI Client from the Windows Store and start running OpenAI's GPT-OSS models on your own hardware today.